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Data Scientist

Walmart


Location:
Sunnyvale, CA 94086
Date:
02/01/2018
2018-02-012018-03-16
Walmart
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Job Details

967019BRReq ID:967019BRCompany Summary:Walmart Global eCommerce is comprised of Walmart.com, VUDU, SamsClub.com, and our technical powerhouse @WalmartLabs. Here, innovators incubate next gen e-commerce solutions in real-time. We integrate online, physical, and mobile shopping experiences for billions of customers around the globe. How do we do it? We continuously build and invest in new technology including open source tools and big data innovations. Data scientists, front and back-end engineers, product managers, and web and UX/UI teams collaborate alongside e-commerce experts to envision, prototype, and bring revolutionary ideas to life in a dynamic, flexible and fun work culture.Job Title:Data ScientistPosition Summary:As an algorithm engineer, you will work on code that improves our operations and experiences for customers. You will marry state-of-art optimization algorithms with distributed systems engineering to build systems that drive efficiencies in our logistics and supply-chain.

Minimum Qualifications:

Masters with 5 years experience or Ph.D. degree in Operations Research, Computer Science, or Machine Learning.

Deep knowledge of computational complexity theory, capable to code time and space efficient algorithms with good scalability.

Ability to understand and mathematically model practical problems within eCommerce and/or supply chain domains.

Proficient with at least one of the object-oriented languages: Python, Java, C++.

Preferred Qualifications:

Solid knowledge in state-of-art algorithms/meta-heuristics (such as Simulated Annealing, Ant Colony Optimization, and Tabu Search) used to solve high complexity combinatorial optimization problems (such as VRP and VRPTW).

Experience with building Operations Research/Machine Learning algorithms and productionizing them at scale in a distributed computation environment.

Ability to independently conduct literature survey, find cutting edge heuristics or algorithms, and implement them in an engineering environment.

Publication in peer-reviewed journals is a plus.City:SUNNYVALEState:CAPosition Description:



+ A Data Scientist is responsible for analyzing large data sets to develop custom models and algorithms to drive business solutions. Data Scientists work on project teams in order to provide analytical support to projects (for example, email targeting, business optimization, consumer recommendations) for Walmart eCommerce. Data Scientists are responsible for building large data sets from multiple sources in order to build algorithms for predicting future data characteristics. Those algorithms will be tested, validated, and applied to large data sets. Data Scientists are responsible for training the algorithms so they can be applied to future data sets and provide the appropriate search results. Data Scientists are responsible for researching new trends in the industry and utilizing up-to-date technology (for example, HBase, MapReduce, LAPack, Gurobi) and analytical skills to support their assigned project.

+ Build complex data sets from multiple data sources, both internally and externally.

+ Build learning systems to analyze and filter continuous data flows and offline data analysis.

+ Combine data features to determine search models.

+ Conduct advanced statistical analysis to determine trends and significant data relationships.

+ Demonstrates up-to-date expertise and applies this to the development, execution, and improvement of action plans

+ Develop custom data models to drive innovative business solutions.

+ Develop models of current state in order to determine needed improvements.

+ Models compliance with company policies and procedures and supports company mission, values, and standards of ethics and integrity

+ Provides and supports the implementation of business solutions

+ Research new techniques and best practices within the industry.

+ Scale new algorithms to large data sets.

+ Train algorithms to apply models to new data sets.

+ Utilize system tools including (MySQL, Hadoop, Weka, R, Matlab,ILog).

+ Validate models and algorithmic techniques.

+ Work with cross-functional partners across the business

Minimum Qualifications:Bachelor's Degree in Computer Science or related field and 5 years experience building scalable ecommerce applications or mobile softwareCategory:Software Development and Engineering Division:Walmart LabsDivision Summary:@WalmartLabs is the technical powerhouse behind Walmart Global eCommerce. We employ big data at scale -- from machine learning, data mining and optimization algorithms, to modeling and analyzing massive flows of data from online, social, mobile and offline commerce. We dont just engineer cool websites, mobile apps, and new services; we use our own open source tools to create the framework. Deployment is automated and accelerated through our open cloud platform. This makes us incredibly nimble and able to adjust in real-time to our global customers.Employment Type:Full TimeRequisition Template:eCommerce
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